While powerful indeed, Trenbolone is not without problems; in-fact, this can be somewhat of a harsh anabolic steroid. Tremendously suppressive to natural testosterone production, exogenous testosterone supplementation should be part of your plan, but that's not all you'll need to worry about. Carrying a progestin nature, gynecomastia can be a concern but it doesn't end there. Despite carrying no dihydrotestosterone (DHT) nature, DHT related effects can occur, but once again the possible problems continue. The side effects of Trenbolone are some of the hardest to predict, and there are four possible effects that can be very harsh that make up this unpredictable nature. While most men will be fine with responsible use, due to poor genetic responses to the hormone some will not be able to supplement even with responsible use; unfair, sure, but that's life.